Well there was Fag-ash Lill (sister of the infamous Lillo Lill), who was a legend around Birkenhead Docks years ago.
Apparently her knee tremblers on a cold winter's night against the dock sheds were mythical.
And for an all-in price of half a crown and a packet of woodbines.
Sorry to commandeer your post Mr Colston. 
Let freedom reign - and if I ever meet one, let free domme rain on me.
Actually, come to think of it, one did ... and I reminisce ...
About five years ago I told a lady in Cardiff I would love to lick her cunt while she was being fucked.
Being a thoughtful girl she arranged it and I loved the experience - but her client said he didn't enjoy it at all.
She then crossed him off her list ... and for the next few months I had some of the best sex I've ever had with her - absolutely free. I think the high point of many was her whipping the arse of a girl who was sucking my cock.
I still have some wonderful pics and a few videos but it all came to an end: she went off escorting and the girl, who I saw a few times after retired about three months ago.